Condenser



Nov. 4 1924. I 1,514,295

J. F. LINDBERG CONDENSER Filed July 5. '1922 Patented Nov. 4, 1924.

UNITED STATES JOHN F. LINDBEBG, OF CHICAGO, ILLINOIS.

CONDENSER.

Application flled July 5, 1922. Serial No. 572,878.

To all 'whom it 'may ooncern:

Be it known that I, JOHN F. LINDBERG, citizen of the United States, residin at Chicago, in the county of Cook and tate of Illinois, have invented a certain new and useful Improvement in Condensers, of which the :following is a full, clear, concise, and cxact description. a

My invention relates to those condensers whose sides are formed of substantially parallel leaves and resides in so mounting both condenser sides that each may be turned or otherwise adjusted withrespect to the other to regulate the capacity of the condenser. There is desirably an adjusting device individual to each condenser side for turning or otherwise adjusting it with res ect to the other condenser side.

condenser constructed in accordance with the preferred embodiment of the invention includes a hollow shaft mounted to turn and carrying one of the condenser sides, sleeves upon which the other condenser side may turn, a shaft within the bore of the hollow shaft, and speed reducing motion transmitting lever mechanism connected with the second shaft and in gear connection with one of the sleeves which is also in gear connection with the condenser side supported thereby.

I will explain my invention more fully by reference to the accompanying drawing in which Fig. 1 is a side elevation, partially in section, of a condenser constructed in accordance with the preferred embodiment of the invention; Fig. 2 is a sectional view on line 2-2 of Fig. 1; Fig. 3 is a view on a larger scale of a part of the structure as it is illustrated in Fig 2; Fig. 4 illustrates the lever mechanism, a plate of one of the condenser sides adjustable thereby and a mounting for the plates of this condenser side, these elements bein illustrated in separated relation; and Fig. 5 is a view in perspective of one of the supporting sleeves.

Like parts are indicated by simllar characters of reference throughout the different figures.

The condenser illust'rated includes two mounting plates 1 and 2 of insulating material which are assembled upon threaded metallic rods 3 by means of nuts 4, 5, 6 and 7. These rods are assembled with the mounting board 8. S-leeves 9 are mounted to turn upon the rods 3 between the nuts 5 and 6. These sleeves are formed with ribs 10 that constitute elongated gear teeth, these ribs margining slots in the sleeves. VThe sleeves are also formed with ears 11 which embrace the. ribs 10, the leaves 12 of one condenser side being carried by the sleeves 9 in the spaces between the ears 11 thereof. The sleeves and the parts thereon, being metallic, serve to electrically connect the plates of the condenser side employing the plates 12. Mechanism hereinafter to be specified is emplo ed for turning the sleeves 9 in unison w ereby the leaves 12 may be turned upon a common axis when the condenser side employing these leaves is to be adjusted to regulate the condenser capacity. The other condenser side is composed of a group of metallic leaves 13, these leaves being alternated with the leaves of the first group, as illustrated.

The support for the group of leaves 13 which is rotatively mounted in the plates 1 and 2 is incluslve of a rotatable sleeve or hollow shaft that is composed of a metallic section 141 having an enlargement 15 journaled in the plate 2 and a contiguous section 16 of non-conducting material that is rotatively supported in the plate 17 through which the shaft section 16 projects. There is a knob 18 upon the outer end of the shaft section 16, this knob being provided with scale marks upon its periphery, this knob being rotatable in front of a suitably marked plate 19, whereby the extent of rotative movement of the shaft 14, 16 and of the condenser side carried thereby may readily be determined. The metallic shaft section 14 is also journaled upon the plate 1 through the intermediation of a second shaft 20 journaled within the first shaft and having its projecting end 21 directly journaled in the platev 1. The portion of this shaft that is within the metallic section 14 is itself metallic. The inner shaft has a section 22 of insulating material that is in threaded connection with the metallic portion of this shaft and which continues through the bore of the hollow shaft or sleeve sufliciently to project beyond the front of the knob 18, this projecting end of the inner shaft being equipped with a knob 23 that bears suitable scale marks upon its periphery to cooperate with suitable marking upon the knob 18 in defining the iextent lof the ladjustment' ofhthein ner shaft'with respect to the hollow shaft.

The leaves 13 arev spaced apart by metallic washe1s24 and there is a nut 25 screwed upon the inner end of the hollowshaft 14 for clamping therleaves 'and Washers and the shaft enlargement 15 together.

The coarse or approximate adjustment of the capacity of the condenser is efl'ected by turning the knob 18 to cause the turning'V movement of the' condenser side 13 at the speed of rotation of the knob. The finer or finishing adjustment of the condenser ca- .which the rods .the

-changes 'may readily be made without de-l pacity is efl'ected by turning the other condenser side 12 to which end the speed re-' ducing motion transmitting -mechanism is interposedI between the' inner shaft 22 and the sleeves 9. This speed reducing: motion transmitting mechanism is preferably inclusive of a collar 26 of insulating material that is fixed upon the inner shaft 20 to turn therewith. This collar carries pins 27 that move within the slots 28 formed in' the levers 29 longitudi'nally thereof. These levers are formed With openings 30v through 3 freely pass. These openings are formed with` enlargements 31 that receive the ribs or elongated teeth 10 upon 'wthesleeves' 9; Whenever the knob 23 is turned the sha'ft 20 is turned to'cause movement of the levers 29 and `swinging movements of the sleeves 9 of reduced turning movement with respect to the movement of the knob 23. The sleeves 9 being in gear connection with the condenser leaves 12' throughthe intermediation of the elongated teeth 10, such condenserleaves are caused to turn as a conse'quence of the operation of ,the levers 29. In adjusting the condenser 4capacity the initial or approximate adjustment is eifected by turning the knob' 18 and the close or finishing adjustment is efl'ected by turning the knob 23.

While I have herein shown and particularly described the preferred embodiment of my i'nvention I do not wish to be limited to precise details of construction shown as parting from the splrit of my invention but having thus described my inventlon I'clalm as new and desire to secure by Letters Patent the following p 1. A condenser including two condenser .sides ,formed of substantially parallel leaves 'and both mounted to turn; and an adjusting device individual to each condenseriside for turnin it with respect to the other coni denser si e, said adjusting devices being constructed to adjust the condenser sides pertaining thereto at difl'erent rates.

, 2. A condenser including two condenser i Ving one of the condenser ing one of the condenser -and the latter condenser 'i [names i sides formed of substantially parallel leaves; a hollow shaft mounted to turn andcarrysides; a mounting upon` whichthe other condenser side may turn; a shaft within the bore of the ;hollow shaft; and motion transmittin mechanism between this second shaft and t e latter condenser side whereby 'rotation of the second shaft will cause this condenser side to turn.

.3. A condenser including two 'condenser sides formed of substantially parallelleaves;

a hollow shaft mounted to turn and carrysides; a mounting upon which theother condenser side'm'a turn; a shaft within the bore of the hollow shaft and speed reducing motion transmitting mechanism between this second vshaft side whereby rotati'on of the second sha'ft will cause' this condenser side toy turn. o i

4.' A condenser including` two condenser sides formed of substantially parallel leaves; a hollow shaft mounted to turn and carrying one of the condenser sides; sleeves upon which the other condenser side may turn; a shaft within the bore of the'hollow shaft; and motion transmitting lever mechanism connected with the second shaft and in gear connection wi'th one of said sleeves whichjs also in gear connection with the condenser side supported thereb sides formed of substantially parallel leaves; a hollow shaft mountedto turn and carrying one' of the condenser sides' sleeves; upon` which the other condenser side mayturn; a shaft within the bore' of the hollow shaft; and speed reducing motion transmitting lever mechanism connected'with the second 5. A condenser including two condenser shaft and in gear connection With one of the sleeves lwhich is also in 6. A condenser includin two condenser sides formed of substantial and both mounted to move; and an adjusti'ng device individual to each condenser side for movin it with respect' to the other condenser lsi e, said adjusting devices being 'constructed to, adjust the condenser sides lpertaming. thereto at different rates.

w JOHN. F. LINDBERG.

y parallel leaves gear connection with w the condenser side supported thereby. 

